Refractive Index

Exponential Business and Technologies Company

Bridging You and Nano

Refractive Index

Refractive index measurements are performed by determining the critical angle of internal reflection between the fluid being measured and a medium with a known refractive index. It is commonly used to identify a particular substance, determine its purity, or measure concentration. For example, it is used in the sugar processing industry to determine the mass fraction of sugar dissolved in water.

Typical Experimental Results:

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Refractive Index of Different Grades of Acetone

Applications:

Chemicals	Concentration	Flavor, Fragrance, Cosmetics
Food & Beverage	Fuels	Gels
Lubricants	Oils	Petroleum
Pharmaceuticals	Plastics	Process Control
Sugar Processing	Temperature Profiling	Toxicology Testing

For more information please read our application notes.

Instruments: Rudolph J357 Automatic Refractometer

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Key Specifications:

Temperature Range	15 to 100 C
Measurement Range	1.26-1.70 RI, 0-95 BRIX
Resolution	0.00001 RI, 0.01 BRIX
Accuracy	± 0.00004 RI, ± 0.03
Repeatability	± 0.00002 RI, ± 0.015